Supplementary code of fair competition for the railway and industrial spring industry (a division of the machinery and allied products industry) as approved on April 23, 1934
Title from title screen (viewed July 28, 2014). At head of title: National Recovery Administration. "Registry no. 1414-08." "Approved Code No. 347--Supplement No. 2." Publication pre-dates item numbers. No item number has been assigned.